# Decibel dB vs PowerCheck

The clearest difference is in-app purchases: PowerCheck at none against Decibel dB's 6. PowerCheck also leads on update cadence (daily vs every 4 months). Decibel dB's advantage is iOS requirement (12.4 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. Decibel dB sells 6 in-app purchases, starting at $3.99 per 7 days. PowerCheck asks for nothing beyond the download.

Decibel dB ships an update every 4 months, PowerCheck daily. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Decibel dB | PowerCheck |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (684 ratings)](https://appshunter.io/ios/app/decibel-db-sound-level-meter/id1644852399/reviews)** | — |
| Number of ratings | **684** | — |
| Positive reviews | 77.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Daily** |
| Monetization | Subscription | — |
| Size | 32 MB | 12 MB |
| Requires iOS | **12.4** | 17.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ITincubator UAB](https://appshunter.io/developer/1617775851) | [Michael glucz](https://appshunter.io/developer/1108685011) |

## What reviewers say

### Decibel dB

[App page](https://appshunter.io/ios/app/decibel-db-sound-level-meter/id1644852399)

Measure ambient noise and sound levels in real-time with this tool. It helps control noise pollution and protect user health by displaying decibel values numerically and graphically. Track exposure over time with NIOSH and OSHA compliant measurements.

**Highlights:** Measure noise in decibels (dB), Track MIN, AVG, MAX sound levels, Record and export measurements, Overlay noise levels on photos/videos, NIOSH and OSHA compliant meter

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sound Level Meter Pro | $3.99 | per 7 days |
| Weekly Access | $3.99 | per 7 days |
| Decibel Meter: Pro Version | $6.99 | per month |
| Monthly Access | $6.99 | per month |
| Noise Level Meter (dB) Pro | $12.99 | per year |
| Yearly Access | $12.99 | per year |

**What reviewers like**

- 👍 Accurate and reliable measurements
- 🚀 Easy to use interface
- 💡 Innovative features like photo/video noise overlay
- 👍 Compliant with industry standards
- 👍 Detailed noise tracking and monitoring

**What reviewers complain about**

- 🐛 Inconsistent accuracy compared to other apps
- 🐛 Doesn't detect loud noises accurately

**Reported bugs**

- Inaccurate decibel readings in some environments
- Occasional crashes or freezes

**Requested features**

- Ability to record and export noise measurements
- Integration with smart home devices


### PowerCheck

[App page](https://appshunter.io/ios/app/powercheck/id6782585266)

**In-app purchases:** none


## Frequently asked questions

### Is Decibel dB free?

Decibel dB is free to download, with in-app purchases available.

### Is PowerCheck free?

PowerCheck is free to download, with no in-app purchases.

### Do Decibel dB or PowerCheck have ads?

Neither Decibel dB nor PowerCheck shows ads.

### Which is updated more often, Decibel dB or PowerCheck?

Decibel dB ships an update every 4 months, and PowerCheck daily. Most recently, Decibel dB was updated on November 3, 2026 and PowerCheck on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*